JP2556242B2 - Gulf loading method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of loading and unloading a container which enables extremely efficient loading and unloading of containers to and from a freighter on the shore.

[0002]

2. Description of the Related Art In recent years, in cargo handling on the Gulf, container transportation as a unit cargo has become the mainstream, but a large crane is used for loading and unloading containers on a cargo ship. Further, sea transportation by freighter can carry a much larger amount of cargo at one time than land transportation by truck, etc. However, since the transportation speed is slow, the speed of cargo handling on the quay was not a problem.

However, in recent years, high-speed ships have been developed, and in order to take advantage of the advantages of high-speed ships, it has been desired to increase the cargo handling speed.

[0004]

However, if the containers are loaded and unloaded by cranes one by one as in the present case, the freighter will be restrained by the quay for a considerable time. Therefore, there is a problem that the advantage of the high-speed ship cannot be effectively utilized, and it becomes impossible to sufficiently meet the demand of the shipper.

The present invention has been made in order to solve the above-mentioned conventional problems. It is possible to load and unload a cargo on a freighter berth as fast as possible, efficiently and at high speed. It is an object of the present invention to provide a Gulf cargo handling method that effectively utilizes the advantages of a cargo ship.

[0006]

According to the method of cargo handling according to the present invention, there is provided a cargo channel for pulling in a cargo ship and a cargo handling yard provided at a position higher than this cargo channel, and the deck and cargo handling of the cargo ship are provided. The yard is submerged below the sea level and the loading / unloading container loaded on the deck and the loading container loaded on the loading / unloading yard are floated above the sea level, and then the loading / unloading container is moved to the loading / unloading yard. The towing of the loading container to the deck of the cargo ship, then the deck of the cargo ship is floated above the sea surface, and the loading and unloading of the container is efficiently carried out by draining the handling yard. is there.

[0007]

1 to 3 show an embodiment of a cargo handling method according to the present invention, FIGS. 1 and 2 are sectional views of a quay showing working steps, and FIG. 3 is a plan view thereof.

In the drawings, reference numeral 1 is a cargo ship, 2 is a waterway of the cargo ship 1, 3 is a cargo handling yard, 4 is a front gate that closes the front of the waterway 2, and 5 is a rear portion of the cargo handling yard 3. The rear gates, and reference numerals 6 and 7 are a container waiting to be loaded and a container waiting to be unloaded, respectively.

The lead-in water channel 2 and the cargo handling yard 3 are continuously provided, and the cargo handling yard 3 is provided at a position higher than the lead-in water channel 2. Furthermore, both sides of the lead-in water channel 2 and the cargo handling yard 3 are filled to the same water level. Side walls 8 and 8 are continuously provided so as to be possible.

In such a structure, the front gate 4 and the rear gate 5 are closed, and the floor surface of the cargo handling yard 3 can be completely submerged by pumping water into the lead-in water channel 2 and the cargo handling yard 3. Only 3 can be pumped out.

Next, the working method will be described step by step.

First, the front gate 4 is opened to open the cargo ship 1
In the water channel 2. Then, the front gate 4 is closed again, and at the same time, the rear gate 5 is closed. At this time, in the loading / unloading yard 3, preparations for loading the container 6 have already been completed and kept in standby.

Next, the lead-in water channel 2 and the cargo handling yard 3
A container 7 in the handling yard 3 is floated above the sea by pumping seawater into the inside. At the same time, the draft of the cargo ship 1 is changed by ballast or the like to submerge the deck of the cargo ship 1 so that the container 7 on the deck of the cargo ship 1 is floated in seawater.

It should be noted that the deck of the cargo ship 1 is provided at a position lower than the sea level, the gate 9 is provided at the rear of the deck, the gate 9 is opened, and the container 6 floating on the sea level is pulled into the deck together with the seawater, The container may be loaded by closing the gate 9 and pumping out seawater (see FIG. 4).

Next, the container 7 floating on the sea surface is towed to the side of the cargo handling yard 3 and moored at a container storage space provided at one corner of the cargo handling yard 3.

Next, the container 6 is pulled out to the cargo ship 1 side, towed to the deck, and moored right above the deck.

Next, the freighter 1 is levitated until the deck appears above sea level. As a result, the container 6 floating on the sea surface is placed on the deck, and the loading is completed.

Further, the seawater in the cargo handling yard 3 is pumped out until the floor surface of the cargo handling yard 3 appears above the sea surface. As a result, the container 7 moored at the container storage place is placed at the container storage place, and the unloading is completed.

A float 10 may be provided in order to easily float the containers 6 and 7, and in this case, the containers 6 and 7 are taken in and out together with the float 10.

[0020]

The present invention is configured as described above, and since loading and unloading of containers from a cargo ship are all performed by utilizing the buoyancy of seawater, a special cargo handling machine is used. Very easy to do without the help of.

Further, the containers on the cargo ship can be collectively unloaded and the containers can be collectively loaded on the cargo ship, and the loading and unloading operations of the containers can be performed very efficiently.

[Brief description of drawings]

FIG. 1 is a side view showing a step of an embodiment of a method of cargo handling according to the present invention.

FIG. 2 is a side view showing a step of an embodiment of the method of cargo handling according to the present invention.

FIG. 3 is a plan view of FIG. 2;

FIG. 4 is a side view of a cargo ship.

FIG. 5 is a side view of the container.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Cargo ship, 2 ... Intake channel, 3 ... Handling yard, 4 ... Front gate, 5 ... Rear gate, 6 ... Loading container, 7
… Unloading container, 8… side wall, 9… gate, 10… float.

Claims (1)

(57) [Claims] 1. A retracting waterway for drawing in a cargo ship, and a handling yard provided at a position higher than this drawingway. The deck of the cargo ship and the handling yard are submerged below the sea level and placed on the deck. The unloading container loaded above and the loading container loaded above the handling yard are floated above the sea surface, respectively, and then the unloading container is towed to the handling yard and the loading container is towed to the deck of the cargo ship. Then, next,
A method of loading and unloading a Gulf, wherein the deck of the cargo ship is floated above the sea surface and the handling yard is drained.